package main
import (
	"fmt"
)
func main(){
	var month int64
	fmt.Println("输入月份")
	fmt.Scanln(&month)
	switch month {
		case 12, 1, 2 :
			fmt.Printf("%v月是冬季",month)
		case 3, 4, 5 :
			fmt.Printf("%v月是春季",month)		
		case 6, 7, 8 :
			fmt.Printf("%v月是夏季",month)
		case 9, 10, 11 :
			fmt.Printf("%v月是秋季",month)
		default :
			fmt.Println("error")
	}
}